To whom should propaganda be addressed? To the scientifically trained intelligentsia or the less educated masses? It must be addressed always and exclusively to the masses.
The biases the media has are much bigger than conservative or liberal. They're about getting ratings, about making money, about doing stories that are easy to cover.
Recently I danced in a video spoof of the song 'Gangnam Style,' and it was quickly banned across multiple Chinese online video platforms. But the story still traveled all over the world, carried in hundreds of international media reports.